Dr. Theodore D. Masek

  • MD
  • Radiation Oncologist
  • Spoken languages English


Career Positions

Current position(s)

  • GenesisCare - Regional Medical Director, Radiation Oncologist, Palm Desert, CA

Past position(s)

  • Eisenhower Memorial Hospital - Radiation Oncologist, Department Director, Rancho Mirage, CA
  • Loma Linda University - Acting Director, Department of Radiation Oncology, Loma Linda, CA
  • Loma Linda University, School of Medicine - Assistant Professor, Loma Linda, CA



  • Westminster College, BS, Physical Science, Salt Lake City, UT
  • Southwestern University MHAM School of Medicine, Cebu City, Philippines


  • Loma Linda University, Radiation Oncology, Loma Linda, CA


  • Loma Linda University School of Medicine, Pediatrics, Loma Linda, CA


  • University of Pittsburgh, GammaKnife Stereotactical Radiosurgery, Pittsburgh, PA

Expertise And Interests


  • Prostate, Breast, Lung, Colorectal, Skin, Head and Neck Malignancies


Awards and honors

  • Past President of the Riverside County Medical Association, California Medical Association Board of Trustees, American Medical Association House of Delegates, Intern of the Year at Southwestern University Medical School, Cebu City Philippines, Honorary Na

Theodore Masek's Reviews


based on 35 Ratings 10 Comments


IAM very happy with Dr. Masek's explanation n manner. I am still considering treatment but was unable to make contact with support group and also dealing with starting dyalysis.


Procedure room floor needs cleaning. Space was also cluttered: large equipment trunk and one too many chairs


There isn't anything that can be done to make having a prostate volume study a pleasant experience. They truly did everything they could to give you some dignity


Dr was in and out quickly. Could have slowed down a bit

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